Earlier this week, Apple released a new television commercial for the iPhone 4 entitled "Longer", highlighting the device's battery life.
This is the iPhone 4. Its lithium-polymer battery lets you work longer, play longer, laugh longer, listen longer, shoot, edit, share, update, download, read, write, and even FaceTime longer. All on the world's thinnest smartphone - the iPhone 4.The commercial is also featured in Apple's iPhone 4 ad gallery.
Apple released a similar feature-specific commercial last month focusing on the iPhone 4's high-resolution Retina display.